Ill start this thread up too, it concerns gearing. I know that putting different-sized sprockets on the drive train alters the gear ratios, but Im a bit less clear on the issue of gearboxes. So: what exactly do they do, are they needed on all robots, and if so, can they be bought/scrounged or do they have to be made from scratch? (Ill be using 24v 150W gold motors btw)
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